depot - monorepo for the virus lounge

Age	Commit message (Collapse)	Author	Files	Lines
2016-02-26	importPaths(): Optionally add NARs to binary cache accessor	Eelco Dolstra	1	-1/+2
	This enables an optimisation in hydra-queue-runner, preventing a download of a NAR it just uploaded to the cache when reading files like hydra-build-products.
2016-02-25	Add NAR / Store accessor abstraction	Eelco Dolstra	1	-1/+3
	This is primary to allow hydra-queue-runner to extract files like "nix-support/hydra-build-products" from NARs in binary caches.
2016-02-24	Eliminate reserveSpace flag	Eelco Dolstra	1	-1/+1

2016-02-23	Pool<T>: Allow a maximum pool size	Eelco Dolstra	1	-3/+4

2016-02-23	RemoteStore: Make thread-safe	Eelco Dolstra	1	-9/+13
	This allows a RemoteStore object to be used safely from multiple threads concurrently. It will make multiple daemon connections if necessary. Note: pool.hh and sync.hh have been copied from the Hydra source tree.
2016-02-04	StoreAPI -> Store	Eelco Dolstra	1	-1/+1
	Calling a class an API is a bit redundant...
2015-09-18	Shut up clang warnings	Eelco Dolstra	1	-29/+30

2015-07-17	Allow remote builds without sending the derivation closure	Eelco Dolstra	1	-0/+3
	Previously, to build a derivation remotely, we had to copy the entire closure of the .drv file to the remote machine, even though we only need the top-level derivation. This is very wasteful: the closure can contain thousands of store paths, and in some Hydra use cases, include source paths that are very large (e.g. Git/Mercurial checkouts). So now there is a new operation, StoreAPI::buildDerivation(), that performs a build from an in-memory representation of a derivation (BasicDerivation) rather than from a on-disk .drv file. The only files that need to be in the Nix store are the sources of the derivation (drv.inputSrcs), and the needed output paths of the dependencies (as described by drv.inputDrvs). "nix-store --serve" exposes this interface. Note that this is a privileged operation, because you can construct a derivation that builds any store path whatsoever. Fixing this will require changing the hashing scheme (i.e., the output paths should be computed from the other fields in BasicDerivation, allowing them to be verified without access to other derivations). However, this would be quite nice because it would allow .drv-free building (e.g. "nix-env -i" wouldn't have to write any .drv files to disk). Fixes #173.
2015-06-02	Add a ‘verifyStore’ RPC	Ludovic Courtès	1	-0/+1
	Hello! The patch below adds a ‘verifyStore’ RPC with the same signature as the current LocalStore::verifyStore method. Thanks, Ludo’. >From aef46c03ca77eb6344f4892672eb6d9d06432041 Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Ludovic=20Court=C3=A8s?= <ludo@gnu.org> Date: Mon, 1 Jun 2015 23:17:10 +0200 Subject: [PATCH] Add a 'verifyStore' remote procedure call.
2015-03-25	addToStore(): Take explicit name argument	Eelco Dolstra	1	-14/+14

2014-09-01	Add an 'optimiseStore' remote procedure call.	Ludovic Courtès	1	-1/+3

2014-07-23	Remove dead code	Eelco Dolstra	1	-1/+0

2014-02-18	Add a flag ‘--check’ to verify build determinism	Eelco Dolstra	1	-1/+1
	The flag ‘--check’ to ‘nix-store -r’ or ‘nix-build’ will cause Nix to redo the build of a derivation whose output paths are already valid. If the new output differs from the original output, an error is printed. This makes it easier to test if a build is deterministic. (Obviously this cannot catch all sources of non-determinism, but it catches the most common one, namely the current time.) For example: $ nix-build '<nixpkgs>' -A patchelf ... $ nix-build '<nixpkgs>' -A patchelf --check error: derivation `/nix/store/1ipvxsdnbhl1rw6siz6x92s7sc8nwkkb-patchelf-0.6' may not be deterministic: hash mismatch in output `/nix/store/4pc1dmw5xkwmc6q3gdc9i5nbjl4dkjpp-patchelf-0.6.drv' The --check build fails if not all outputs are valid. Thus the first call to nix-build is necessary to ensure that all outputs are valid. The current outputs are left untouched: the new outputs are either put in a chroot or diverted to a different location in the store using hash rewriting.
2012-12-20	nix-store -q --roots: Respect the gc-keep-outputs/gc-keep-derivations settings	Eelco Dolstra	1	-0/+2
	So if a path is not garbage solely because it's reachable from a root due to the gc-keep-outputs or gc-keep-derivations settings, ‘nix-store -q --roots’ now shows that root.
2012-11-09	Remove definition of non-existant function	Eelco Dolstra	1	-2/+0

2012-10-03	Add a ‘--repair’ flag to nix-instantiate	Eelco Dolstra	1	-2/+2
	This allows repairing corrupted derivations and other source files.
2012-10-02	Add a --repair flag to ‘nix-store -r’ to repair derivation outputs	Eelco Dolstra	1	-1/+1
	With this flag, if any valid derivation output is missing or corrupt, it will be recreated by using a substitute if available, or by rebuilding the derivation. The latter may use hash rewriting if chroots are not available.
2012-07-26	Merge branch 'master' into no-manifests	Eelco Dolstra	1	-5/+1

2012-07-18	Use "#pragma once" to prevent repeated header file inclusion	Eelco Dolstra	1	-5/+1

2012-07-18	Merge branch 'master' into no-manifests	Eelco Dolstra	1	-0/+2

2012-07-17	Add function queryPathFromHashPart()	Eelco Dolstra	1	-0/+2
	To implement binary caches efficiently, Hydra needs to be able to map the hash part of a store path (e.g. "gbg...zr7") to the full store path (e.g. "/nix/store/gbg...kzr7-subversion-1.7.5"). (The binary cache mechanism uses hash parts as a key for looking up store paths to ensure privacy.) However, doing a search in the Nix store for /nix/store/<hash>* is expensive since it requires reading the entire directory. queryPathFromHashPart() prevents this by doing a cheap database lookup.
2012-07-11	Replace hasSubstitutes() with querySubstitutablePaths()	Eelco Dolstra	1	-1/+1
	querySubstitutablePaths() takes a set of paths, so this greatly reduces daemon <-> client latency.
2012-07-11	Add a function queryValidPaths()	Eelco Dolstra	1	-0/+2
	queryValidPaths() combines multiple calls to isValidPath() in one. This matters when using the Nix daemon because it reduces latency. For instance, on "nix-env -qas \*" it reduces execution time from 5.7s to 4.7s (which is indistinguishable from the non-daemon case).
2012-07-11	Rename queryValidPaths() to queryAllValidPaths()	Eelco Dolstra	1	-1/+1

2012-07-11	Implement querySubstitutablePathInfos() in the daemon	Eelco Dolstra	1	-3/+0
	Also removed querySubstitutablePathInfo().
2012-07-06	download-from-binary-cache: parallelise fetching of NAR info files	Eelco Dolstra	1	-0/+3
	Getting substitute information using the binary cache substituter has non-trivial latency overhead. A package or NixOS system configuration can have hundreds of dependencies, and in the worst case (when the local info cache is empty) we have to do a separate HTTP request for each of these. If the ping time to the server is t, getting N info files will take tN seconds; e.g., with a ping time of 0.1s to nixos.org, sequentially downloading 1000 info files (a typical NixOS config) will take at least 100 seconds. To fix this problem, the binary cache substituter can now perform requests in parallel. This required changing the substituter interface to support a function querySubstitutablePathInfos() that queries multiple paths at the same time, and rewriting queryMissing() to take advantage of parallelism. (Due to local caching, parallelising queryMissing() is sufficient for most use cases, since it's almost always called before building a derivation and thus fills the local info cache.) For example, parallelism speeds up querying all 1056 paths in a particular NixOS system configuration from 116s to 2.6s. It works so well because the eccentricity of the top-level derivation in the dependency graph is only 9. So we only need 10 round-trips (when using an unlimited number of parallel connections) to get everything. Currently we do a maximum of 150 parallel connections to the server. Thus it's important that the binary cache server (e.g. nixos.org) has a high connection limit. Alternatively we could use HTTP pipelining, but WWW::Curl doesn't support it and libcurl has a hard-coded limit of 5 requests per pipeline.
2012-06-27	nix-store -r: do substitutions in parallel	Eelco Dolstra	1	-1/+1
	I.e. when multiple non-derivation arguments are passed to ‘nix-store -r’ to be substituted, do them in parallel.
2012-05-29	Reserve some disk space for the garbage collector	Eelco Dolstra	1	-1/+1
	We can't open a SQLite database if the disk is full. Since this prevents the garbage collector from running when it's most needed, we reserve some dummy space that we can free just before doing a garbage collection. This actually revives some old code from the Berkeley DB days. Fixes #27.
2011-12-16	* Sync with the trunk.	Eelco Dolstra	1	-1/+1

2011-12-16	* importPath() -> importPaths(). Because of buffering of the input	Eelco Dolstra	1	-1/+1
	stream it's now necessary for the daemon to process the entire sequence of exported paths, rather than letting the client do it.
2011-11-06	Include all outputs of derivations in the closure of explicitly-passed ↵	Shea Levy	1	-0/+2
	derivation paths This required adding a queryOutputDerivationNames function in the store API
2010-11-16	* Store the size of a store path in the database (to be precise, the	Eelco Dolstra	1	-0/+2
	size of the NAR serialisation of the path, i.e., `nix-store --dump PATH'). This is useful for Hydra.
2010-05-04	* Allow unprivileged users to do `nix-store --clear-failed-paths' and	Eelco Dolstra	1	-0/+4
	`nix-store --query-failed-paths'.
2010-02-22	* Get derivation outputs from the database instead of the .drv file,	Eelco Dolstra	1	-0/+2
	which requires more I/O.
2008-12-11	* Open the connection to the daemon lazily (on demand) so that	Eelco Dolstra	1	-0/+3
	read-only operations (like nix-env -qa) work properly when the daemon isn't running.
2008-12-03	* Pass HashType values instead of strings.	Eelco Dolstra	1	-1/+1

2008-12-03	* Unify the treatment of sources copied to the store, and recursive	Eelco Dolstra	1	-3/+3
	SHA-256 outputs of fixed-output derivations. I.e. they now produce the same store path: $ nix-store --add x /nix/store/j2fq9qxvvxgqymvpszhs773ncci45xsj-x $ nix-store --add-fixed --recursive sha256 x /nix/store/j2fq9qxvvxgqymvpszhs773ncci45xsj-x the latter being the same as the path that a derivation derivation { name = "x"; outputHashAlgo = "sha256"; outputHashMode = "recursive"; outputHash = "..."; ... }; produces. This does change the output path for such fixed-output derivations. Fortunately they are quite rare. The most common use is fetchsvn calls with SHA-256 hashes. (There are a handful of those is Nixpkgs, mostly unstable development packages.) * Documented the computation of store paths (in store-api.cc).
2008-08-02	* Make nix-env --dry-run print the paths to be substituted correctly	Eelco Dolstra	1	-2/+3
	again. (After the previous substituter mechanism refactoring I didn't update the code that obtains the references of substitutable paths.) This required some refactoring: the substituter programs are now kept running and receive/respond to info requests via stdin/stdout.
2008-06-18	* Some refactoring: put the GC options / results in separate structs.	Eelco Dolstra	1	-2/+1
	* The garbage collector now also prints the number of blocks freed.
2008-01-29	* nix-store --dump-db / --load-db to dump/load the Nix DB.	Eelco Dolstra	1	-0/+2
	* nix-store --register-validity: option to supply the content hash of each path. * Removed compatibility with Nix <= 0.7 stores.
2007-11-16	* Flag `--no-build-hook' to disable distributed builds.	Eelco Dolstra	1	-0/+1
	* queryDeriver in daemon mode: don't barf if the other side returns an empty string (which means there is no deriver).
2007-09-18	* Pass various options to the worker so that flags like -K or -j work	Eelco Dolstra	1	-0/+2
	in multi-user Nix (NIX-72). * Client/worker: exchange a protocol version number for future compatibility.
2007-08-12	* Get rid of the substitutes database table (NIX-47). Instead, if we	Eelco Dolstra	1	-4/+4
	need any info on substitutable paths, we just call the substituters (such as download-using-manifests.pl) directly. This means that it's no longer necessary for nix-pull to register substitutes or for nix-channel to clear them, which makes those operations much faster (NIX-95). Also, we don't have to worry about keeping nix-pull manifests (in /nix/var/nix/manifests) and the database in sync with each other. The downside is that there is some overhead in calling an external program to get the substitutes info. For instance, "nix-env -qas" takes a bit longer. Abolishing the substitutes table also makes the logic in local-store.cc simpler, as we don't need to store info for invalid paths. On the downside, you cannot do things like "nix-store -qR" on a substitutable but invalid path (but nobody did that anyway). * Never catch interrupts (the Interrupted exception).
2007-06-12	* Support queryDeriver() in multi-user installations.	Eelco Dolstra	1	-0/+2

2007-02-21	* `nix-store --import' now also works in remote mode. The worker	Eelco Dolstra	1	-1/+1
	always requires a signature on the archive. This is to ensure that unprivileged users cannot add Trojan horses to the Nix store.
2007-02-21	* Support exportPath() in remote mode.	Eelco Dolstra	1	-1/+1

2007-02-21	* `nix-store --import': import an archive created by `nix-store	Eelco Dolstra	1	-0/+2
	--export' into the Nix store, and optionally check the cryptographic signatures against /nix/etc/nix/signing-key.pub. (TODO: verify against a set of public keys.)
2007-02-20	* Start of `nix-store --export' operation for serialising a store	Eelco Dolstra	1	-0/+3
	path. This is like `nix-store --dump', only it also dumps the meta-information of the store path (references, deriver). Will add a `--sign' flag later to add a cryptographic signature, which we will use for exchanging store paths between build farm machines in a secure manner.
2006-12-12	* New primop builtins.filterSource, which can be used to filter files	Eelco Dolstra	1	-1/+2
	from a source directory. All files for which a predicate function returns true are copied to the store. Typical example is to leave out the .svn directory: stdenv.mkDerivation { ... src = builtins.filterSource (path: baseNameOf (toString path) != ".svn") ./source-dir; # as opposed to # src = ./source-dir; } This is important because the .svn directory influences the hash in a rather unpredictable and variable way.
2006-12-05	* Allow unprivileged users to run the garbage collector and to do	Eelco Dolstra	1	-0/+3
	`nix-store --delete'. But unprivileged users are not allowed to ignore liveness. * `nix-store --delete --ignore-liveness': ignore the runtime roots as well.